20354734700804 has 72 divisors (see below), whose sum is σ = 42867803001240. Its totient is φ = 8422150431744.

The previous prime is 20354734700767. The next prime is 20354734700851. The reversal of 20354734700804 is 40800743745302.

It can be written as a sum of positive squares in 4 ways, for example, as 755077578304 + 19599657122500 = 868952^2 + 4427150^2 .

It is a super-2 number, since 2×20354734700804² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105153932 + ... + 105347324.

It is an arithmetic number, because the mean of its divisors is an integer number (595386152795).

Almost surely, 2^{20354734700804} is an apocalyptic number.

It is an amenable number.

20354734700804 is an abundant number, since it is smaller than the sum of its proper divisors (22513068300436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20354734700804 is a wasteful number, since it uses less digits than its factorization.

20354734700804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211957 (or 211948 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 47.

The spelling of 20354734700804 in words is "twenty trillion, three hundred fifty-four billion, seven hundred thirty-four million, seven hundred thousand, eight hundred four".